1999 Chevrolet Silverado 1500 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x139.7 on every 1999 trim.

Tires for the 1999 Chevrolet Silverado 1500

Sizes most trims come with first. Open your trim below for its exact size.

235/75R16 Best-rated standard on 3 trims

Check price on Amazon · 235/75R16
245/75R16 Best-rated standard on 3 trims

Check price on Amazon · 245/75R16
255/70R16 Best-rated optional on 3 trims

Check price on Amazon · 255/70R16

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Trims sold in 1999: 6
Generation: I (GMT800)
Other years: 1999
2000
2001
2002
2003
2004
2005
2006
All years (1999–2026)

6 trims sold in 1999

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Chevrolet Silverado 1500 I (GMT800)

1999–2002 6 trims

Silverado 1500 4.3 +2 variants 200 hp · 4.3L V6 235/75R16 106S 2 fitments

Same tires and wheels on: 4.8, 5.3

Generation: GMT800 · 1999–2002
Power: 200 hp
Engine: 4.3L V6, Petrol
Center bore: 78.1 mm
Bolt pattern: 6x139.7
Thread: M14 x 1.5

Check price on Amazon · 235/75R16 Wheels 16x7 ET31 · 6x139.7 · 78.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
235/75R16 106S	Rim 16x7 ET31 ~~6x139.7~~	35 psi
255/70R16 109S	Rim 16x7 ET31 ~~6x139.7~~	35 psi

How to read 106S: 106 is the load index (up to 2,094 lb / 950 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET31 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Silverado 1500 4.3 4WD +2 variants 200 hp · 4.3L V6 245/75R16 109S 2 fitments

Same tires and wheels on: 4.8 4WD, 5.3 4WD

Generation: GMT800 · 1999–2002
Power: 200 hp
Engine: 4.3L V6, Petrol
Center bore: 78.1 mm
Bolt pattern: 6x139.7
Thread: M14 x 1.5

Check price on Amazon · 245/75R16 Wheels 16x7 ET31 · 6x139.7 · 78.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/75R16 109S	Rim 16x7 ET31 ~~6x139.7~~	35 psi
265/75R16 114S	Rim 16x7 ET31 ~~6x139.7~~	35 psi

How to read 109S: 109 is the load index (up to 2,271 lb / 1,030 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET31 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean

Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.